Lubricant-dispensing can



March 25, 1930.

H. A. FRANCHERE ET AL LUBRICANT DISPENSING CAN Filed Dec. 22, 1928 2 Sheets- Sheet 1 (Nab bbbfbbhbbbfbbbb I I /I March 25, 1930.

H. A. FRANCHERE ET AL- 1,751,732

LUBRICANT DISPENSING CAN Filed Dec. 22, 1928 2 Sheets-Sheet 2 Atmmey Patented Mar. 25, 193i) 1 STATE-S UNETE OFFICE HAROLD A. FRANCHERE AND AUGUSTUS E. JEEP, OF LAKE CRYSTAL, MINNESOTA, AS-

SIGNORS OF SEVENTY PER CENT TO S. L. SHERWIN, F. W. FRANCHERE, B. R.

THOMAS, AND 0. A JoHNsON, ALL OF LAKE CRYSTAL, MINNESOTA, AND THIRTY PER GENT TO SAID HAROLD A. FRANCHERE LUBRICANT-DISPENSING can Application filed December 22, 1928. Serial 110,327,920.-

This invention relates to an improved dispensing can for liquids and it is principally intended for dispensing oil, and it has more particular reference to novel manually operated force feed means.

Briefly described, theinvention comprises an air tight liquid container, a suitable discharge nozzle, an adjustable delivery conduit leading to and connected with said nozzle,

' and a manually operable reciprocatory plunger in the container, operable to eject .the oil or other liquid almost instantaneously with. the movement of an operating lever.

The principal improvement is predicated upon the reciprocatory piston or plunger which is slidable in the container and which elevates the fluid column to produce internal air compression for immediately ejecting the oil through the nozzle as soon as the operating lever for the plunger is actuated.

An equally important feature is the sectional delivery conduit, the lower section of which is in constant yieldable contact with the plunger head to facilitate feeding of the fluid to the nozzle.

Other structural features and advantages will become more readily apparent from the following description and drawings.

In the drawings: Figure 1 is a vertical sectional view through the container and internal mechanism show grip 6. Threaded through an opening in the top is a multiple coupling nipple 4, and threaded on the upper extending coupling is a discharge nozzle 8. Threaded on the internal coupling is a depending tube section 9,

of the sectional delivery conduit. Fitted tele- I the lever 21,1

scopically in this section 9 is a complemental section 10 normally forced downwardly under the" action of an internal expansion spring 11. The section 10 terminates'in a laterally directed flattened intake 12.

This intake 12 is normally pressed down upon a slidable plunger head 13. This is mounted for reciprocation within the con- .tainer and is provided with a flexible marginal packing cup 1 1. The fluid column within the container is disposed above the piston head as is obvious. Incidentally the normal fluid level is indicated at 15 and the plunger is down as shown in Figure 1. The raised oil level is indicated at 16 in Figure 3 and the plunger is lifted. The plunger includes a stem 17 extending upwardly through'a suitable stufiing box or gland 18,

where it is connected with an operating lever 19 through the medium'of linkage 20. This lever is pivoted between its ends on an up-' standing support 21, carried by the container. An air inlet pipe 22 is arranged on one side and is connected with the container adjacent the bottom and below the lowermost position of the; piston. This pipe extends along one side of the container where it'is provided with a spring pressed ball check valve 23. Thus, anappropriate and necessary air inlet is provided to facilitate reciprocation of the piston head '13 and to prevent ejection of. the contents of the container by a back flow. g In order that the principle of operation may be clearly understood, we have shown the piston in its downmostnormal position in Figure 1,.v and inits raised position in Figure 3. The piston has a travel of about three quarters'of an inch; Z

It is understood that the oil is placed in the container through the filler-neck 5. For the sake of illustration, we have'shown the container substantially half full of oil, the nor mal level being indicated at 15. However, by pushing downwardly on the handle end of beraised, and this will, in turn, elevate the oil column and will build up a compression in the space between the oil level and the top of the can, .and this compression thus created t is obvious that the pistonwill will immediately eject oil through the delivery conduit into the nozzle 8. As the piston 13 moves upwardly it is obvious that the telescoping section 10 of the conduit moves up and into the tube 9 against the tension of the spring 11. It thus functions as a follower and is in proper position for i1nmediate ejection of the fluid. As the piston head 13.moves upwardly the suction created between it and the bottom of the container opens the check valve 23 to allow the entrance of air. However, on the downward stroke the valve 23 is closed to prevent accidental discharge of oil through the pipe 22. There is oil leakage between the flexible-cup 14 and the wall of the container.

natures. V V

HAROLD FRANCI-IERE. AUGUSTUS E. JEPP,

It is believed that by considering the detailed description in connection with the drawings, a clear understanding of the construction, operation, and advantages of the invention will be had. Therefore a more lengthy description of the invention is re garded as unnecessary.

Minor changes in the shape, size and rearrangement of details coming within the field of invention claimed may be resorted to, in actual practice, if desired.

We claim:

1. In a fluid dispensing device of the class described, a fluid container, a piston mounted for reciprocation within said container, a discharge nozzle, and a delivery conduit within the container communicating with the discharge nozzle and in constant contact with the piston head, a valved air inlet, con nected with the container adjacent the bottom thereof;

2. In a fluid dispensing device of the class described, a substantially air tight container, a piston mounted for sliding movement in said container, exteriorly arranged operating means for the piston, a nozzle mounted on the top of the container, and a sectional delivery conduit comprising a rigid tubular section connected with the nozzle and a relatively movable section slidable in said rigid section, said slidable section having a laterall directed intake end restin on the u I n n D plston end, and an expansion spring arranged within said rigid section andengaging said movable section for maintaining the latter in constant contact with said piston head.

3, In a fluid dispensing device of the class described, a substantially-air tight container, a piston mounted for sliding movement in said container, exteriorly arranged operating means for the piston, a nozzle mounted onthe top of the container, and a sectional delivery conduit comprising a rigid tubular 4 section connected with the nozzle and a rela tively movable section slidable in said rigid section, said relatively movable section hav ing a laterally directed intake end resting. a onrthe piston head, and an expansion spring arranged within said rigid section anden- 

